Granddaddy Purple Autos. I have the best crop ever in my grow tent. They are larger then ever but just don’t seem to want to flower. I had them on a 12/12 light but now its on for 18 hours a day and still no buds. Any thoughts are appreciated
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Could we see a pic of the plant in question
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Looks really great. How many weeks have they been growing? Most will flower at between 4 and 7 weeks, but we have seen them take as long as 12 weeks to flower.
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Wow. Looking good! Id flip back to 12/12 .
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How long did you have them on 12/12?
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About 15 weeks on 12/12
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Mine have been growing for about 15 weeks, maybe a little more???
Pictures are above, all of mine are not flowering.
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Wow. This is a new one to me.
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That helps thanks.
Flip back to 12/12 and ride it out
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Check to make sure it is completely dark during off cycle. There may be just enough light in there to prevent the flip.
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And double ck timers working correctly
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Light length doesn’t effect autos they flower when they are ready!
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Looks like whenever she does decide to flower youre in for it lol. Great find on those seeds 
Got them from this site. ILGM
As long as they flower…I was getting worried that they all might be hermies, but I don’t think they look like that.
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That’s what I thought that the real dark darkness wasn’t that important with autos…right? Do they look like females to you—just getting a little worried, they keep growing but no buds.
Have you used any type of flowering boosters yet? Maybe hit her with some Open Seasame from Fox Farms to help initiate the flowering process
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That is how it is supposed to work but sometimes an auto will “misfire” and then you just have to treat them like photos. There are many many posts where this has happened. The upside is that they usually have a much bigger yield due to the extra veg time.
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I would try cutting the light back like you would do with a non auto just to see. Mistakes happen could just got mixed up
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I have been using some flowering fertilizer which is definitely working on the greenery and height. I cut the light back again. As long as you all think someday it will bud.
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